﻿/*
 * This file is part of MonoSettlers.
 *
 * Copyright (C) 2010-2011 Christoph Husse
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors: 
 *      # Christoph Husse
 * 
 * Also checkout our homepage: http://opensettlers.codeplex.com/
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using OpenTK;
using OpenTK.Input;
using OpenTK.Graphics;
using System.Runtime.InteropServices;
using System.Threading;

#if EMBEDDED
    using OpenTK.Graphics.ES20;
#else
using OpenTK.Graphics.OpenGL;
#endif

namespace MonoSettlers.RenderSystem
{
    public partial class GLRenderer : IRenderSystem
    {
        internal void RegisterTexture(NativeTexture inTexture)
        {
            if (inTexture.Node != null)
                throw new InvalidOperationException("Texture is already bound to a renderer.");

            inTexture.Node = m_Textures.AddLast(inTexture);
        }

        internal void UnregisterTexture(NativeTexture inTexture)
        {
            if (inTexture.Node == null)
                throw new InvalidOperationException("Texture is not bound to a renderer.");

            m_Textures.Remove(inTexture.Node);
        }

        /// <summary>
        /// "Internal" method used by AnimationEditor.
        /// </summary>
        public OrientedAnimationClass CreateOrientedAnimation(AnimationClass inAnimClass, IPositionTracker inPositionTracker, Double inWidth)
        {
            if (inPositionTracker == null)
                throw new ArgumentNullException();

            var visual = new OrientedAnimationClass(this, inAnimClass)
            {
                PositionTracker = inPositionTracker,
                Width = inWidth,
            };

            visual.Node = m_Visuals.AddLast(visual);

            return visual;
        }


        public IRenderableVisual CreateOrientedAnimation(String inAnimClass, IPositionTracker inPositionTracker, Double inWidth)
        {
            return CreateOrientedAnimation(AnimationLibrary.Instance.FindClass(inAnimClass), inPositionTracker, inWidth);
        }

        /// <summary>
        /// "Internal" method used by AnimationEditor.
        /// </summary>
        public RenderableAnimationClass CreateAnimation(AnimationClass inAnimClass, IPositionTracker inPositionTracker, Double inWidth)
        {
            if (inPositionTracker == null)
                throw new ArgumentNullException();

            var visual = new RenderableAnimationClass(this, inAnimClass)
            {
                PositionTracker = inPositionTracker,
                Width = inWidth,
            };

            visual.Node = m_Visuals.AddLast(visual);

            return visual;
        }

        public IRenderableVisual CreateAnimation(String inAnimClass, IPositionTracker inPositionTracker, Double inWidth)
        {
            return CreateAnimation(AnimationLibrary.Instance.FindClass(inAnimClass), inPositionTracker, inWidth);
        }

        public void RemoveVisual(IRenderableVisual inVisual)
        {
            RenderableVisual visual = inVisual as RenderableVisual;

            m_Visuals.Remove(visual.Node);
            visual.Node = null;
        }
    }
}
